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Finding the Fourth Proportional to 664,892.87, 917,596.81 and 370,588.38

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Solution

The fourth proportional to 664,892.87, 917,596.81 and 370,588.38 is: 511,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,892.87 : 917,596.81 = 370,588.38 : x
  2. Step 2: Convert to fraction form
    664,892.87/917,596.81 = 370,588.38/x
  3. Step 3: Cross multiply
    664,892.87x = 917,596.81 × 370,588.38
  4. Step 4: Simplify right side
    664,892.87x = 340,050,710,723.08
  5. Step 5: Solve for x
    x = 340,050,710,723.08/664,892.87
  6. Step 6: Final answer
    x = 511,436.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.